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efl/src/lib/evas/canvas/evas_callbacks.c

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#define EFL_CANVAS_OBJECT_BETA
#define EVAS_CANVAS_BETA
#include "evas_common_private.h"
#include "evas_private.h"
#define EFL_INTERNAL_UNSTABLE
#include "interfaces/efl_common_internal.h"
int _evas_event_counter = 0;
EVAS_MEMPOOL(_mp_pc);
extern Eina_Hash* signals_hash_table;
/**
* Evas events descriptions for Eo.
*/
#define DEFINE_EVAS_CALLBACKS(FUNC, LAST, ...) \
static const Efl_Event_Description *FUNC(unsigned int index) \
{ \
static const Efl_Event_Description *internals[LAST] = { NULL }; \
\
if (index >= LAST) return NULL; \
if (internals[0] == NULL) \
{ \
memcpy(internals, \
((const Efl_Event_Description*[]) { __VA_ARGS__ }), \
sizeof ((const Efl_Event_Description *[]) { __VA_ARGS__ })); \
} \
return internals[index]; \
}
DEFINE_EVAS_CALLBACKS(_legacy_evas_callback_table, EVAS_CALLBACK_LAST,
EFL_EVENT_POINTER_IN,
EFL_EVENT_POINTER_OUT,
EFL_EVENT_POINTER_DOWN,
EFL_EVENT_POINTER_UP,
EFL_EVENT_POINTER_MOVE,
EFL_EVENT_POINTER_WHEEL,
EFL_EVENT_POINTER_DOWN,
EFL_EVENT_POINTER_UP,
EFL_EVENT_POINTER_MOVE,
EFL_CANVAS_OBJECT_EVENT_FREE,
EFL_EVENT_KEY_DOWN,
EFL_EVENT_KEY_UP,
EFL_CANVAS_OBJECT_EVENT_FOCUS_IN,
EFL_CANVAS_OBJECT_EVENT_FOCUS_OUT,
EFL_GFX_EVENT_SHOW,
EFL_GFX_EVENT_HIDE,
EFL_GFX_EVENT_MOVE,
EFL_GFX_EVENT_RESIZE,
EFL_GFX_EVENT_RESTACK,
EFL_CANVAS_OBJECT_EVENT_DEL,
EFL_EVENT_HOLD,
EFL_GFX_EVENT_CHANGE_SIZE_HINTS,
EFL_IMAGE_EVENT_PRELOAD,
EFL_CANVAS_EVENT_FOCUS_IN,
EFL_CANVAS_EVENT_FOCUS_OUT,
EVAS_CANVAS_EVENT_RENDER_FLUSH_PRE,
EVAS_CANVAS_EVENT_RENDER_FLUSH_POST,
EFL_CANVAS_EVENT_OBJECT_FOCUS_IN,
EFL_CANVAS_EVENT_OBJECT_FOCUS_OUT,
EFL_IMAGE_EVENT_UNLOAD,
EFL_CANVAS_EVENT_RENDER_PRE,
EFL_CANVAS_EVENT_RENDER_POST,
EFL_IMAGE_EVENT_RESIZE,
EFL_CANVAS_EVENT_DEVICE_CHANGED,
EVAS_CANVAS_EVENT_AXIS_UPDATE,
EVAS_CANVAS_EVENT_VIEWPORT_RESIZE );
typedef struct
{
EINA_INLIST;
Evas_Object_Event_Cb func;
void *data;
Evas_Callback_Type type;
int efl_event_info; // for key, pointer and hold
} _eo_evas_object_cb_info;
typedef struct
{
EINA_INLIST;
Evas_Event_Cb func;
void *data;
Evas_Callback_Type type;
} _eo_evas_cb_info;
#define EFL_EVENT_TYPE_LEGACY 0
#define EFL_EVENT_TYPE_POINTER 1
#define EFL_EVENT_TYPE_KEY 2
#define EFL_EVENT_TYPE_HOLD 3
static int
_evas_event_efl_event_info_exists(Evas_Callback_Type type)
{
switch (type)
{
case EVAS_CALLBACK_MOUSE_IN:
case EVAS_CALLBACK_MOUSE_OUT:
case EVAS_CALLBACK_MOUSE_DOWN:
case EVAS_CALLBACK_MOUSE_UP:
case EVAS_CALLBACK_MOUSE_MOVE:
case EVAS_CALLBACK_MOUSE_WHEEL:
case EVAS_CALLBACK_MULTI_DOWN:
case EVAS_CALLBACK_MULTI_UP:
case EVAS_CALLBACK_MULTI_MOVE:
return EFL_EVENT_TYPE_POINTER;
case EVAS_CALLBACK_KEY_DOWN:
case EVAS_CALLBACK_KEY_UP:
return EFL_EVENT_TYPE_KEY;
case EVAS_CALLBACK_HOLD:
return EFL_EVENT_TYPE_HOLD;
default:
return EFL_EVENT_TYPE_LEGACY;
}
}
static void
_eo_evas_object_cb(void *data, const Eo_Event *event)
{
Evas_Event_Flags *event_flags = NULL, evflags = EVAS_EVENT_FLAG_NONE;
Efl_Event *efl_event_info = event->info;
_eo_evas_object_cb_info *info = data;
void *event_info;
Evas *evas;
evas = evas_object_evas_get(event->object);
if (!info->func) return;
switch (info->efl_event_info)
{
case EFL_EVENT_TYPE_POINTER:
event_info = efl_event_pointer_legacy_info_fill(efl_event_info, &event_flags);
break;
case EFL_EVENT_TYPE_KEY:
event_info = efl_event_key_legacy_info_fill(efl_event_info, &event_flags);
break;
case EFL_EVENT_TYPE_HOLD:
event_info = efl_event_hold_legacy_info_fill(efl_event_info, &event_flags);
break;
case EFL_EVENT_TYPE_LEGACY:
info->func(info->data, evas, event->object, event->info);
return;
default: return;
}
if (!event_info) return;
if (event_flags) evflags = *event_flags;
info->func(info->data, evas, event->object, event_info);
if (event_flags && (evflags != *event_flags))
efl_event_flags_set(efl_event_info, *event_flags);
}
static void
_eo_evas_cb(void *data, const Eo_Event *event)
{
_eo_evas_cb_info *info = data;
if (info->func) info->func(info->data, event->object, event->info);
}
void
_evas_post_event_callback_call(Evas *eo_e, Evas_Public_Data *e)
{
Evas_Post_Callback *pc;
int skip = 0;
static int first_run = 1; // FIXME: This is a workaround to prevent this
// function from being called recursively.
if (e->delete_me || (!first_run)) return;
_evas_walk(e);
first_run = 0;
EINA_LIST_FREE(e->post_events, pc)
{
if ((!skip) && (!e->delete_me) && (!pc->delete_me))
{
if (!pc->func((void*)pc->data, eo_e)) skip = 1;
}
EVAS_MEMPOOL_FREE(_mp_pc, pc);
}
first_run = 1;
_evas_unwalk(e);
}
void
_evas_post_event_callback_free(Evas *eo_e)
{
Evas_Public_Data *e = efl_data_scope_get(eo_e, EVAS_CANVAS_CLASS);
Evas_Post_Callback *pc;
EINA_LIST_FREE(e->post_events, pc)
{
EVAS_MEMPOOL_FREE(_mp_pc, pc);
}
}
void
evas_object_event_callback_all_del(Evas_Object *eo_obj)
{
_eo_evas_object_cb_info *info;
Eina_Inlist *itr;
Evas_Object_Protected_Data *obj = efl_data_scope_get(eo_obj, EFL_CANVAS_OBJECT_CLASS);
if (!obj) return;
if (!obj->callbacks) return;
EINA_INLIST_FOREACH_SAFE(obj->callbacks, itr, info)
{
efl_event_callback_del(eo_obj, _legacy_evas_callback_table(info->type), _eo_evas_object_cb, info);
obj->callbacks =
eina_inlist_remove(obj->callbacks, EINA_INLIST_GET(info));
free(info);
}
}
void
evas_object_event_callback_cleanup(Evas_Object *eo_obj)
{
evas_object_event_callback_all_del(eo_obj);
}
void
evas_event_callback_all_del(Evas *eo_e)
{
_eo_evas_object_cb_info *info;
Eina_Inlist *itr;
Evas_Public_Data *e = efl_data_scope_get(eo_e, EVAS_CANVAS_CLASS);
if (!e) return;
if (!e->callbacks) return;
EINA_INLIST_FOREACH_SAFE(e->callbacks, itr, info)
{
efl_event_callback_del(eo_e, _legacy_evas_callback_table(info->type), _eo_evas_cb, info);
e->callbacks =
eina_inlist_remove(e->callbacks, EINA_INLIST_GET(info));
free(info);
}
}
void
evas_event_callback_cleanup(Evas *eo_e)
{
evas_event_callback_all_del(eo_e);
}
void
evas_event_callback_call(Evas *eo_e, Evas_Callback_Type type, void *event_info)
{
efl_event_callback_call(eo_e, _legacy_evas_callback_table(type), event_info);
}
void
evas_object_event_callback_call(Evas_Object *eo_obj, Evas_Object_Protected_Data *obj,
Evas_Callback_Type type, void *event_info, int event_id,
const Efl_Event_Description *efl_event_desc, Efl_Event *efl_event_info)
{
/* MEM OK */
Evas_Button_Flags flags = EVAS_BUTTON_NONE;
Evas_Public_Data *e;
if (!obj) return;
if ((obj->delete_me) || (!obj->layer)) return;
if ((obj->last_event == event_id) &&
(obj->last_event_type == type)) return;
if (obj->last_event > event_id)
{
if ((obj->last_event_type == EVAS_CALLBACK_MOUSE_OUT) &&
((type >= EVAS_CALLBACK_MOUSE_DOWN) &&
(type <= EVAS_CALLBACK_MULTI_MOVE)))
{
return;
}
}
obj->last_event = event_id;
obj->last_event_type = type;
if (!(e = obj->layer->evas)) return;
_evas_walk(e);
if ((type == EVAS_CALLBACK_MOVE) && (obj->move_ref == 0))
goto nothing_here;
switch (type)
{
case EVAS_CALLBACK_MOUSE_DOWN:
{
Evas_Event_Mouse_Down *ev = event_info;
flags = ev->flags;
if (ev->flags & (EVAS_BUTTON_DOUBLE_CLICK | EVAS_BUTTON_TRIPLE_CLICK))
{
if (obj->last_mouse_down_counter < (e->last_mouse_down_counter - 1))
ev->flags &= ~(EVAS_BUTTON_DOUBLE_CLICK | EVAS_BUTTON_TRIPLE_CLICK);
}
obj->last_mouse_down_counter = e->last_mouse_down_counter;
if (efl_event_info)
{
efl_event_pointer_button_flags_set(efl_event_info, ev->flags);
}
break;
}
case EVAS_CALLBACK_MOUSE_UP:
{
Evas_Event_Mouse_Up *ev = event_info;
flags = ev->flags;
if (ev->flags & (EVAS_BUTTON_DOUBLE_CLICK | EVAS_BUTTON_TRIPLE_CLICK))
{
if (obj->last_mouse_up_counter < (e->last_mouse_up_counter - 1))
ev->flags &= ~(EVAS_BUTTON_DOUBLE_CLICK | EVAS_BUTTON_TRIPLE_CLICK);
}
obj->last_mouse_up_counter = e->last_mouse_up_counter;
if (efl_event_info)
{
efl_event_pointer_button_flags_set(efl_event_info, ev->flags);
}
break;
}
default:
break;
}
if (_evas_event_efl_event_info_exists(type))
{
efl_event_callback_call(eo_obj, efl_event_desc, efl_event_info);
}
else
{
/* legacy callbacks - relying on Efl.Canvas.Object events */
efl_event_callback_call(eo_obj, _legacy_evas_callback_table(type), event_info);
/* new input events - unlikely */
if (efl_event_desc)
efl_event_callback_call(eo_obj, efl_event_desc, efl_event_info);
}
if (type == EVAS_CALLBACK_MOUSE_DOWN)
{
Evas_Event_Mouse_Down *ev = event_info;
ev->flags = flags;
if (efl_event_info)
efl_event_pointer_button_flags_set(efl_event_info, ev->flags);
}
else if (type == EVAS_CALLBACK_MOUSE_UP)
{
Evas_Event_Mouse_Up *ev = event_info;
ev->flags = flags;
if (efl_event_info)
efl_event_pointer_button_flags_set(efl_event_info, ev->flags);
}
nothing_here:
if (!obj->no_propagate)
{
if ((obj->smart.parent) && (type != EVAS_CALLBACK_FREE) &&
(type <= EVAS_CALLBACK_KEY_UP))
{
Evas_Object_Protected_Data *smart_parent = efl_data_scope_get(obj->smart.parent, EFL_CANVAS_OBJECT_CLASS);
evas_object_event_callback_call(obj->smart.parent, smart_parent, type, event_info, event_id, efl_event_desc, efl_event_info);
}
}
_evas_unwalk(e);
}
EAPI void
evas_object_event_callback_add(Evas_Object *eo_obj, Evas_Callback_Type type, Evas_Object_Event_Cb func, const void *data)
{
evas_object_event_callback_priority_add(eo_obj, type,
EVAS_CALLBACK_PRIORITY_DEFAULT, func, data);
}
EAPI void
evas_object_event_callback_priority_add(Evas_Object *eo_obj, Evas_Callback_Type type, Evas_Callback_Priority priority, Evas_Object_Event_Cb func, const void *data)
{
Evas_Object_Protected_Data *obj = efl_data_scope_get(eo_obj, EFL_CANVAS_OBJECT_CLASS);
MAGIC_CHECK(eo_obj, Evas_Object, MAGIC_OBJ);
return;
MAGIC_CHECK_END();
if (!obj) return;
if (!func) return;
_eo_evas_object_cb_info *cb_info = calloc(1, sizeof(*cb_info));
cb_info->func = func;
cb_info->data = (void *)data;
cb_info->type = type;
cb_info->efl_event_info = _evas_event_efl_event_info_exists(type);
const Efl_Event_Description *desc = _legacy_evas_callback_table(type);
efl_event_callback_priority_add(eo_obj, desc, priority, _eo_evas_object_cb, cb_info);
obj->callbacks =
eina_inlist_append(obj->callbacks, EINA_INLIST_GET(cb_info));
}
EAPI void *
evas_object_event_callback_del(Evas_Object *eo_obj, Evas_Callback_Type type, Evas_Object_Event_Cb func)
{
_eo_evas_object_cb_info *info;
MAGIC_CHECK(eo_obj, Evas_Object, MAGIC_OBJ);
return NULL;
MAGIC_CHECK_END();
Evas_Object_Protected_Data *obj = efl_data_scope_get(eo_obj, EFL_CANVAS_OBJECT_CLASS);
if (!obj) return NULL;
if (!func) return NULL;
if (!obj->callbacks) return NULL;
EINA_INLIST_REVERSE_FOREACH(obj->callbacks, info)
{
if ((info->func == func) && (info->type == type))
{
void *tmp = info->data;
efl_event_callback_del(eo_obj, _legacy_evas_callback_table(type), _eo_evas_object_cb, info);
obj->callbacks =
eina_inlist_remove(obj->callbacks, EINA_INLIST_GET(info));
free(info);
return tmp;
}
}
return NULL;
}
EAPI void *
evas_object_event_callback_del_full(Evas_Object *eo_obj, Evas_Callback_Type type, Evas_Object_Event_Cb func, const void *data)
{
_eo_evas_object_cb_info *info;
MAGIC_CHECK(eo_obj, Evas_Object, MAGIC_OBJ);
return NULL;
MAGIC_CHECK_END();
Evas_Object_Protected_Data *obj = efl_data_scope_get(eo_obj, EFL_CANVAS_OBJECT_CLASS);
if (!obj) return NULL;
if (!func) return NULL;
if (!obj->callbacks) return NULL;
EINA_INLIST_FOREACH(obj->callbacks, info)
{
if ((info->func == func) && (info->type == type) && info->data == data)
{
void *tmp = info->data;
efl_event_callback_del(eo_obj, _legacy_evas_callback_table(type), _eo_evas_object_cb, info);
obj->callbacks =
eina_inlist_remove(obj->callbacks, EINA_INLIST_GET(info));
free(info);
return tmp;
}
}
return NULL;
}
EAPI void
evas_event_callback_add(Evas *eo_e, Evas_Callback_Type type, Evas_Event_Cb func, const void *data)
{
evas_event_callback_priority_add(eo_e, type, EVAS_CALLBACK_PRIORITY_DEFAULT,
func, data);
}
EAPI void
evas_event_callback_priority_add(Evas *eo_e, Evas_Callback_Type type, Evas_Callback_Priority priority, Evas_Event_Cb func, const void *data)
{
Evas_Public_Data *e = efl_data_scope_get(eo_e, EVAS_CANVAS_CLASS);
MAGIC_CHECK(eo_e, Evas, MAGIC_EVAS);
return;
MAGIC_CHECK_END();
if (!func) return;
_eo_evas_cb_info *cb_info = calloc(1, sizeof(*cb_info));
cb_info->func = func;
cb_info->data = (void *)data;
cb_info->type = type;
const Efl_Event_Description *desc = _legacy_evas_callback_table(type);
efl_event_callback_priority_add(eo_e, desc, priority, _eo_evas_cb, cb_info);
e->callbacks = eina_inlist_append(e->callbacks, EINA_INLIST_GET(cb_info));
}
EAPI void *
evas_event_callback_del(Evas *eo_e, Evas_Callback_Type type, Evas_Event_Cb func)
{
Evas_Public_Data *e = efl_data_scope_get(eo_e, EVAS_CANVAS_CLASS);
_eo_evas_cb_info *info;
MAGIC_CHECK(eo_e, Evas, MAGIC_EVAS);
return NULL;
MAGIC_CHECK_END();
if (!e) return NULL;
if (!func) return NULL;
if (!e->callbacks) return NULL;
EINA_INLIST_REVERSE_FOREACH(e->callbacks, info)
{
if ((info->func == func) && (info->type == type))
{
void *tmp = info->data;
efl_event_callback_del(eo_e, _legacy_evas_callback_table(type), _eo_evas_cb, info);
e->callbacks =
eina_inlist_remove(e->callbacks, EINA_INLIST_GET(info));
free(info);
return tmp;
}
}
return NULL;
}
EAPI void *
evas_event_callback_del_full(Evas *eo_e, Evas_Callback_Type type, Evas_Event_Cb func, const void *data)
{
_eo_evas_cb_info *info;
MAGIC_CHECK(eo_e, Evas, MAGIC_EVAS);
return NULL;
MAGIC_CHECK_END();
Evas_Public_Data *e = efl_data_scope_get(eo_e, EVAS_CANVAS_CLASS);
if (!e) return NULL;
if (!func) return NULL;
if (!e->callbacks) return NULL;
EINA_INLIST_FOREACH(e->callbacks, info)
{
if ((info->func == func) && (info->type == type) && (info->data == data))
{
void *tmp = info->data;
efl_event_callback_del(eo_e, _legacy_evas_callback_table(type), _eo_evas_cb, info);
e->callbacks =
eina_inlist_remove(e->callbacks, EINA_INLIST_GET(info));
free(info);
return tmp;
}
}
return NULL;
}
EAPI void
evas_post_event_callback_push(Evas *eo_e, Evas_Object_Event_Post_Cb func, const void *data)
{
Evas_Post_Callback *pc;
MAGIC_CHECK(eo_e, Evas, MAGIC_EVAS);
return;
MAGIC_CHECK_END();
Evas_Public_Data *e = efl_data_scope_get(eo_e, EVAS_CANVAS_CLASS);
if (!e) return;
EVAS_MEMPOOL_INIT(_mp_pc, "evas_post_callback", Evas_Post_Callback, 64, );
pc = EVAS_MEMPOOL_ALLOC(_mp_pc, Evas_Post_Callback);
if (!pc) return;
EVAS_MEMPOOL_PREP(_mp_pc, pc, Evas_Post_Callback);
if (e->delete_me) return;
pc->func = func;
pc->data = data;
e->post_events = eina_list_prepend(e->post_events, pc);
}
EAPI void
evas_post_event_callback_remove(Evas *eo_e, Evas_Object_Event_Post_Cb func)
{
Evas_Post_Callback *pc;
Eina_List *l;
MAGIC_CHECK(eo_e, Evas, MAGIC_EVAS);
return;
MAGIC_CHECK_END();
Evas_Public_Data *e = efl_data_scope_get(eo_e, EVAS_CANVAS_CLASS);
if (!e) return;
EINA_LIST_FOREACH(e->post_events, l, pc)
{
if (pc->func == func)
{
pc->delete_me = 1;
return;
}
}
}
EAPI void
evas_post_event_callback_remove_full(Evas *eo_e, Evas_Object_Event_Post_Cb func, const void *data)
{
Evas_Post_Callback *pc;
Eina_List *l;
MAGIC_CHECK(eo_e, Evas, MAGIC_EVAS);
return;
MAGIC_CHECK_END();
Evas_Public_Data *e = efl_data_scope_get(eo_e, EVAS_CANVAS_CLASS);
if (!e) return;
EINA_LIST_FOREACH(e->post_events, l, pc)
{
if ((pc->func == func) && (pc->data == data))
{
pc->delete_me = 1;
return;
}
}
}
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